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Author (up) Heuch, I.; Hagen, K.; Zwart, J.A.   
  Title Association between body height and chronic low back pain: a follow-up in the Nord-Trondelag Health Study Type Journal Article
  Year 2015 Publication BMJ Open Abbreviated Journal BMJ open  
  Volume 5 Issue 6 Pages e006983  
  Keywords HUNT2; HUNT3; Adult; Aged; Biomechanical Phenomena/physiology; *Body Height; Chronic Disease; Female; Follow-Up Studies; Humans; Low Back Pain/*epidemiology; Male; Middle Aged; Norway/epidemiology; Prospective Studies; Risk Factors  
  Abstract OBJECTIVE: To study potential associations between body height and subsequent occurrence of chronic low back pain (LBP). DESIGN: Prospective cohort study. SETTING: The North-Trondelag Health Study (HUNT). Data were obtained from a whole Norwegian county in the HUNT2 (1995-1997) and HUNT3 (2006-2008) surveys. PARTICIPANTS: Altogether, 3883 women and 2662 men with LBP, and 10,059 women and 8725 men without LBP, aged 30-69 years, were included at baseline and reported after 11 years whether they suffered from LBP. MAIN OUTCOME MEASURE: Chronic LBP, defined as pain persisting for 3 months during the previous year. RESULTS: Associations between body height and risk and recurrence of LBP were evaluated by generalised linear modelling. Potential confounders, such as BMI, age, education, employment, physical activity, smoking, blood pressure and lipid levels were adjusted for. In women with no LBP at baseline and body height >/= 170 cm, a higher risk of LBP was demonstrated after adjustment for other risk factors (relative risk 1.19, 95% CI 1.03 to 1.37; compared with height  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Department of Neurology and FORMI, Oslo University Hospital, Oslo, Norway.Department of Mathematics, Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
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  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number HUNT @ maria.stuifbergen @ Heuch2015 Serial 1818  
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Author (up) Myklestad, K.; Vatten, L.J.; Magnussen, E.B.; Salvesen, K.A.; Romundstad, P.R. url  doi
  Title Do parental heights influence pregnancy length?: A population-based prospective study, HUNT 2 Type Journal Article
  Year 2013 Publication BMC Pregnancy and Childbirth Abbreviated Journal BMC Pregnancy Childbirth  
  Volume 13 Issue Pages 33  
  Keywords Adult; *Body Height; Female; *Gestational Age; Humans; Linear Models; Logistic Models; Male; Menstruation; Norway/epidemiology; Odds Ratio; Pregnancy; Premature Birth/*epidemiology/ultrasonography; Prospective Studies; Registries; *Term Birth; Ultrasonography, Prenatal  
  Abstract BACKGROUND: The objective of this study was to examine the association of maternal and paternal height with pregnancy length, and with the risk of pre- and post-term birth. In addition we aimed to study whether cardiovascular risk factors could explain possible associations. METHODS: Parents who participated in the Nord-Trondelag Health Study (HUNT 2; 1995-1997) were linked to offspring data from the Medical Birth Registry of Norway (1997-2005). The main analyses included 3497 women who had delivered 5010 children, and 2005 men who had fathered 2798 pregnancies. All births took place after parental participation in HUNT 2. Linear regression was used to estimate crude and adjusted differences in pregnancy length according to parental heights. Logistic regression was used to estimate crude and adjusted associations of parental heights with the risk of pre- and post-term births. RESULTS: We found a gradual increase in pregnancy length by increasing maternal height, and the association was essentially unchanged after adjustment for maternal cardiovascular risk factors, parental age, offspring sex, parity, and socioeconomic measures. When estimated date of delivery was based on ultrasound, the difference between mothers in the lower height quintile (<163 cm cm) and mothers in the upper height quintile (>/= 173 cm) was 4.3 days, and when estimated date of delivery was based on last menstrual period (LMP), the difference was 2.8 days. Shorter women (< 163 cm) had lower risk of post-term births, and when estimated date of delivery was based on ultrasound they also had higher risk of pre-term births. Paternal height was not associated with pregnancy length, or with the risks of pre- and post-term births. CONCLUSIONS: Women with shorter stature had shorter pregnancy length and lower risk of post-term births than taller women, and when EDD was based on ultrasound, they also had higher risk of preterm births. The effect of maternal height was generally stronger when pregnancy length was based on second trimester ultrasound compared to last menstrual period. The association of maternal height with pregnancy length could not be explained by cardiovascular risk factors. Paternal height was neither associated with pregnancy length nor with the risk of pre- and post-term birth.  
  Address Department of Public Health, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim N-7489, Norway. kirsti.myklestad@ntnu.no  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1471-2393 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:23383756; PMC3608172 Approved no  
  Call Number HUNT @ maria.stuifbergen @ Serial 1417  
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